Merge branch 'master' into doc-prod

Author: nicolaskruchten

Diff for: CHANGELOG.md

@@ -2,6 +2,16 @@
 All notable changes to this project will be documented in this file.
 This project adheres to [Semantic Versioning](http://semver.org/).
 
+## UNRELEASED
+
+
+## [5.1.0] - 2021-06-28
+
+- Updated Plotly.js to from version 2.1.0 to version 2.2.0. See the [plotly.js CHANGELOG](https://github.com/plotly/plotly.js/blob/master/CHANGELOG.md#220----2021-06-28) for more information. These changes are reflected in the auto-generated `plotly.graph_objects` module. Notable changes include:
+  - new `<trace>.legendgrouptitle` attribute for legend group titles
+  - new `%h` text formatting directive for half-years
+  - performance improvements and bug fixes
+
 
 ## [5.0.0] - 2021-06-21
 
@@ -13,7 +23,7 @@ Items in this section may be considered backwards-incompatible changes for the p
 - Updated Plotly.js to from version 1.58.4 to version 2.1.0. See the [plotly.js CHANGELOG](https://github.com/plotly/plotly.js/blob/master/CHANGELOG.md#210----2021-06-18) for more information. These changes are reflected in the auto-generated `plotly.graph_objects` module. Notable changes include:
     - dropped support for IE9 and IE10
     - dropped support for long-deprecated `graph_objects` like `area` traces and `scatter.(t|r)` and `layout.(radial|angular)axis` attributes
-    - modebar no longer has `hovermode` or `showspikes` buttons by default (can be added back with `layout.modebar.add=v1hovermode`)
+    - modebar no longer has hovermode or spikeline buttons by default (can be added back with `fig.update_layout(modebar_add=["v1hovermode", "toggleSpikeLines"])`)
     - "Aa" text no longer appears on legend items unless `mode="text"`
     - In `bar` traces, `textposition` now defaults to `"auto"`
     - Font size for legend and colorbar titles now matches axis title font size (slightly bigger)

Diff for: README.md

@@ -37,7 +37,7 @@ Our recommended IDE for Plotly’s Python graphing library is Dash Enterprise’
 
 ## Quickstart
 
-`pip install plotly==5.0.0`
+`pip install plotly==5.1.0`
 
 Inside [Jupyter](https://jupyter.org/install) (installable with `pip install "jupyterlab>=3" "ipywidgets>=7.6"`):
 
@@ -86,13 +86,13 @@ Built on top of [plotly.js](https://github.com/plotly/plotly.js), `plotly.py` is
 plotly.py may be installed using pip...
 
 ```
-pip install plotly==5.0.0
+pip install plotly==5.1.0
 ```
 
 or conda.
 
 ```
-conda install -c plotly plotly=5.0.0
+conda install -c plotly plotly=5.1.0
 ```
 
 ### JupyterLab Support
@@ -114,7 +114,7 @@ The instructions above apply to JupyterLab 3.x. **For JupyterLab 2 or earlier**,
 
 ```
 # JupyterLab 2.x renderer support
-jupyter labextension install jupyterlab-plotly@5.0.0 @jupyter-widgets/jupyterlab-manager
+jupyter labextension install jupyterlab-plotly@5.1.0 @jupyter-widgets/jupyterlab-manager
 ```
 
 Please check out our [Troubleshooting guide](https://plotly.com/python/troubleshooting/) if you run into any problems with JupyterLab.

Diff for: binder/requirements.txt

@@ -1,5 +1,5 @@
 jupytext
-plotly==5.0.0
+plotly==5.1.0
 jupyter
 notebook
 pandas==1.0.3

Diff for: doc/apidoc/conf.py

@@ -28,7 +28,7 @@
 # The short X.Y version
 version = ""
 # The full version, including alpha/beta/rc tags
-release = "5.0.0"
+release = "5.1.0"
 
 
 # -- General configuration ---------------------------------------------------

Diff for: doc/python/getting-started.md

@@ -58,13 +58,13 @@ We also encourage you to join the [Plotly Community Forum](http://community.plot
 `plotly` may be installed using `pip`:
 
 ```
-$ pip install plotly==5.0.0
+$ pip install plotly==5.1.0
 ```
 
 or `conda`:
 
 ```
-$ conda install -c plotly plotly=5.0.0
+$ conda install -c plotly plotly=5.1.0
 ```
 
 This package contains everything you need to write figures to standalone HTML files.
@@ -132,7 +132,7 @@ The instructions above apply to JupyterLab 3.x. **For JupyterLab 2 or earlier**,
 
 ```
 # JupyterLab 2.x renderer support
-jupyter labextension install jupyterlab-plotly@5.0.0 @jupyter-widgets/jupyterlab-manager
+jupyter labextension install jupyterlab-plotly@5.1.0 @jupyter-widgets/jupyterlab-manager
 ```
 
 Please check out our [Troubleshooting guide](/python/troubleshooting/) if you run into any problems with JupyterLab, particularly if you are using multiple python environments inside Jupyter.

Diff for: doc/python/legend.md

@@ -346,7 +346,7 @@ fig.show()
 
 #### Grouped Legend Items
 
-Grouping legend items together by setting the `legendgroup` attribute of traces causes their legend entries to be next to each other, and clicking on any legend entry in the group will show or hide the whole group.
+Grouping legend items together by setting the `legendgroup` attribute of traces causes their legend entries to be next to each other, and clicking on any legend entry in the group will show or hide the whole group. The `legendgrouptitle` attribute can be used to give titles to groups.
 
 ```python
 import plotly.graph_objects as go
@@ -357,6 +357,7 @@ fig.add_trace(go.Scatter(
     x=[1, 2, 3],
     y=[2, 1, 3],
     legendgroup="group",  # this can be any string, not just "group"
+    legendgrouptitle_text="First Group Title",
     name="first legend group",
     mode="markers",
     marker=dict(color="Crimson", size=10)
@@ -375,6 +376,7 @@ fig.add_trace(go.Scatter(
     x=[1, 2, 3],
     y=[4, 9, 2],
     legendgroup="group2",
+    legendgrouptitle_text="Second Group Title",
     name="second legend group",
     mode="markers",
     marker=dict(color="MediumPurple", size=10)

Diff for: doc/requirements.txt

@@ -1,4 +1,4 @@
-plotly==5.0.0
+plotly==5.1.0
 jupytext==1.1.1
 jupyter
 notebook

Diff for: packages/javascript/jupyterlab-plotly/package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "jupyterlab-plotly",
-  "version": "5.0.0",
+  "version": "5.1.0",
   "description": "The plotly Jupyter extension",
   "author": "The plotly.py team",
   "license": "MIT",
@@ -65,7 +65,7 @@
     "@lumino/messaging": "^1.2.3",
     "@lumino/widgets": "^1.8.1",
     "lodash": "^4.17.4",
-    "plotly.js": "^2.1.0"
+    "plotly.js": "^2.2.0"
   },
   "jupyterlab": {
     "extension": "lib/jupyterlab-plugin",